Child pornography is the Internet’s most severe social problem…Enter the world’s second biggest technology company. “We can help make a big dent,” [said] Microsoft SVP and General Counsel Brad Smith…In 2009, Microsoft donated a new technology to the NCMEC [National Center for Missing and Exploited Children]…Using a unique…technology…PhotoDNA finds hidden copies of the worst images of child sexual exploitation known today...Although…Yahoo and Google enforce content standards as a matter of practice, the manual and human-intensive processes they rely on to remove inappropriate posts are no match for the sheer volume of child porn...That is why…PhotoDNA…is so necessary.